CN103169147A - Papermaking tobacco sheet pulp grinding process - Google Patents
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- CN103169147A CN103169147A CN2013100608671A CN201310060867A CN103169147A CN 103169147 A CN103169147 A CN 103169147A CN 2013100608671 A CN2013100608671 A CN 2013100608671A CN 201310060867 A CN201310060867 A CN 201310060867A CN 103169147 A CN103169147 A CN 103169147A
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Abstract
The invention discloses a papermaking tobacco sheet pulp grinding process. Specifically speaking, under the light beating condition, three-stage light beating flexible pulp grinding is adopted, each stage needs at least two pulp grinding machines, pulp concentration is decreased gradually, and size circulation process is controlled. In prepared size, fibers with the length of 0.5-1.25mm reach more than 63%, bulk degrees of base tabs reach 2.8-3.0cm <3>/g, spreading rates, filling values, burning velocity of finished sheets are improved greatly, tar contents and carbon oxide contents are reduced greatly, and the bulk degrees of the finished sheets reach 2.3-2.5cm<3>/g. The number of pulp grinding machines arranged in the first stage, the second stage and the third stage in a serial connection mode is respectively 4, 3 and 2. The pulp grinding concentration in the first stage, the second stage and the third stage are respectively set to be 4.5-5.0%, 4.0-4.5% and 2.0-2.5%. Times of self-circulation of the size in the first stage, the second stage and the third stage are respectively 1-3 times, 1-2 times and 1-2 times. The times for which mixed size prepared in different components passes through the pulp grinding machines in the whole process are 9-22 times actually, and all nine pulp grinding machines allow constant power regulation independently.
Description
Technical field
The present invention relates to a kind of tobacco sheets by paper making method refining process, be specially at light cutter and discongest under condition, adopt Multi-stage flexible low concentration refining process, preparation reconstituted tobacoo slurry belongs to cigarette industry reconstituted tobacco production technical field.
Background technology
Wet type tobacco sheets by paper making method (claiming again reconstituted tobacco) is to mix with a certain amount of wood pulp and filler etc. with the tobacco pulp that the waste materials such as offal, crumbled tobacco and offal are made, manufacturing paper with pulp into substrate through paper machine makes through dip coated again, because baccy fiber is similar to low-grade straw pulp fiber, it not raw material of papermaking fiber preferably, from the formation of baccy fiber material as can be known, its lignin content is low, main component is the carbohydrate chemical substance, need not adopt chemical pulping, process but directly carry out defibrination, control the physical properties of substrate by suitable making beating.By micro-analysis as can be known, offal is pulled an oar rear pulp fibres ratio seldom, and non-fibre fractionation content is high, and described fiber is elongated, belt-shaped, wall thin (length 0.2～0.75mm, diameter 27～67 μ m), and the cell footpath is large, and fiber surface produces a small amount of sub-wire; Long component complete after the offal making beating is few, and assorted component is many, almost there is no fibre fractionation, is mainly a large amount of fragments.On the other hand, because the tobacco substrate need to be guaranteed suitable bulk and air permeability, to guarantee substrate absorbent properties to coating fluid in coating process, therefore, work out reasonably mill (beating) sizing process, guarantee that mill (beating) is starched improve form and the character of fiber with physical method under controlled condition, make the substrate of manufacturing paper with pulp meet the quality requirement of expection extremely important.Wood pulp or high-grade pulp fibres for paper industry, detection fibers mill (beating) slurry quality leading indicator comprises beating degree (freedom), fiber wet weight (average fiber length), water retention value etc., yet the reliable detection index for the reconstituted tobacco pulp fibres is the detection of fiber wet weight (average fiber length), and average fiber length directly has influence on pulling force, bulk, filling value, spreading rate, absorbability and the pliability of finished product thin slice in the handsheet process.according to the special nature of tobacco material and join and copy, coating and oven dry principle, when in the finished product thin slice, average fiber length is retained between 0.4～1.2mm, the finished product thin slice can keep detected value preferably in These parameters, fiber is long or too short has adverse effect to product quality and the pulping performance of manufacturing paper with pulp, therefore, tobacco material is after the operations such as defibrination are processed, control as far as possible fiber length distribution and account for maximum ratio between 0.4～1.2mm, it is selection indicators, such as the distributive law of fibre length between 0.4～1.2mm in certain internationally renowned brand company finished product thin slice up to 63.3%.
The factor of impact making beating comprises specific beating pressure (loading power), beating consistency, making beating temperature, throughput (flow and capacity of returns), raw material type, cutter matter and cutter is thick, beating time, advance to starch pressure etc.Wherein throughput and beating time and advance to starch pressure correlation; Specific beating pressure is relevant to throughput; The making beating temperature is process control condition, and is simultaneously relevant to beating consistency and specific beating pressure etc.; And the thick type selecting that is related to abrasive disc of cutter matter and cutter; Advance to starch pressure except with throughput is relevant, have influence on simultaneously the use of abrasive disc.Studies show that, realize to control specific beating pressure, throughput, beating consistency, advance to starch effectively controlling of the major parameter such as pressure, it is the key that improves fiber quality in thin slice, account for maximum ratio by controlling beating consistency and throughput method acquisition fibre length between 0.5～1.25mm, effective control method, wherein more about the disclosed works in refining concentration control aspect, paper or patent.
Chinese invention patent " a kind of tobacco raw material pulping process of tobacco sheets by paper making method " (application number 200810197536.1) is disclosed is that the solid phase tobacco material that Separation of Solid and Liquid goes out is sent into low dense mill making beating, and in slurry, the concentration of solid phase tobacco material is 4 ± 0.5%; Utility model patent " refining system of reconstituted tobacoo " (application number 200820241035.4) is disclosed is that the high dense mill of tobacco pulp (15～20%) arranges low dense mill (3～4%) and high dense pressurized screen scheme afterwards, be conducive to the defective material that pressurized screen sifts out and again send low dense mill, be conducive to that impurity is got rid of, the slurry steady quality; Patent of invention " a kind of tobacco material slurrying carding process of tobacco sheets by paper making method " (application number 201110004572.3) is disclosed is the solid phase tobacco material that Separation of Solid and Liquid goes out to be sent into deflaker discongest when concentration is 3～6%, rotor speed 1500～3000r/min, excessive sub-wire, brooming, conquassation when avoiding high consistency pulping, the low adverse effect of excessively cutting off when dense; The disclosed rear pulping of heating, low dense refining process, the concentration setting content during undeclared low dense defibrination of comprising of patent of invention " reconstituted tobacco efficiently production technology and special extraction pulper thereof " (application number 200910094315.6).
" the microscopic pattern analyses under the different conditions of beating of tobacco pulp " that " Chinese papermaking " the 4th periodical in 2012 carries point out that offal and offal slurry component length mainly are distributed between 0.20～0.75mm, the suitable moderate of taking of offal slurry is pulled an oar, the offal slurry is suitable low making beating only, consider, the best beating degree of the mixed slurry of outer mixed slurry and cigarette is respectively 62 ° of SR and 60 ° of SR, in " research of tobacco sheets by paper making method beating process and retention and drainage aid agent " that publishes " Chinese paper industry " in November, 2010, adopt the KRK fiberizer, carry out under the different refining concentration conditions of tobacco pulp (4%, 8%, 18%, 30%) defibrination experiment, and will be joined by the tobacco pulp of offal and broken cigarette preparation and wood pulp and copy the tobacco substrate, comprise and add different retention and drainage aid agents impact shows on substrate properties: adopt low dense (4%) defibrination and add appropriate additive gained substrate quality better, during high consistency refining, the rubbing action of offal and broken cigarette self is larger, cause fibre bundle to destroy and fracture, the tobacco pulp weight in wet base is less, though the neat and well spaced degree of page is better, but water retention value is lower.
Disclosed in above patent and document, be only from beating degree control, be low to moderate 3% refining concentration aspect most and illustrated and be of value to that substrate is manufactured paper with pulp and the thin slice quality improves content, do not copy and to improve the thin slice quality be key problem aspect analysis and the open solution by keeping fiber 0.5～1.25mm length 〉=60% mixed slurry or realize measure from being of value to most joining.
(application number: 201210292967.2) disclosed elementary slurrying is to utilize a fiberizer repetitive cycling defibrination 6～9 times to Chinese invention patent " a kind of papermaking-method reconstituted tobaccos pulping process ", secondary slurrying is to utilize another fiberizer repetitive cycling defibrination 1～3 time, increased substantially fiber wet weight, in embodiment one gained slurry, 55.1% fiber is in 0.20～0.50mm interval, 1.5mm above fiber has 9.2%, in the obtained slurry of embodiment five, 74.8% fiber is between 0.2～0.75mm, and the above fiber of 1.5mm only has 1.4%.Its weak point is: ⑴ makes in pulping, and the short fibre content of 0.20～0.50mm has 35.6%, and is relatively high; ⑵ the middle fiber content of 0.5～1.25mm＜60%, this defibrination level also belongs to a kind of medium rank; ⑶ substrate bulk≤2.6cm that utilize this explained hereafter to go out
3/ g, relatively low; ⑷ the second defibrination in described technique, every one-level are all to utilize a mill iterative cycles, and production efficiency is lower; ⑸ regulate difficulty when using under separate unit mill, the whole same cases of single-stage defibrination condition.
Summary of the invention
The objective of the invention is to ask a question for background technology, a kind of tobacco sheets by paper making method refining process is disclosed, be specially under light tool section spare, adopt the flexible defibrinations of three sections light cuttves, every section at least two fiberizer, successively reduce slurry concentration and control the slurry circulation technology, in the slurry that makes, length reaches more than 63% at fiber between 0.5～1.25mm, and the substrate bulk reaches 2.8～3.0cm
3/ g, the spreading rate of finished product thin slice, filling value, burning velocity all obtain to improve by a relatively large margin, and tar content, CO content all have remarkable reduction, and finished product thin slice bulk reaches 2.3～2.5cm
3/ g.
Technical scheme of the present invention is: a kind of tobacco sheets by paper making method refining process, be to adopt flexible light cutter low concentration refining process, it is characterized in that: comprise three sections low dense flexible defibrinations and every section two fiberizer of connecting at least, every section by set point number self-loopa defibrination, successively reduce by three process programs of refining concentration; Described first paragraph is in series with four fiberizers, second segments and is in series with three fiberizers, the 3rd section and is in series with two fiberizers; Described first to the 3rd section refining concentration is set as respectively 4.5～5.0%, 4.0～4.5%, 2.0～2.5%; Described slurry is self-loopa 1～2 time in self-loopa 1～2 time, the 3rd section in self-loopa 1～3 time, second segment in first paragraph, is 9 times by the mixed slurry overall process reality of different components configurations by the fiberizer least number of times, maximum 22 times.
A kind of tobacco sheets by paper making method refining process as above is characterized in that: whole 9 fiberizers can carry out separately permanent power adjusting.Its beneficial effect is: by the automatic adjusting of the depth of cut, reach permanent power refining effect, can prevent that the abrasive disc wearing and tearing from causing pulp beating power to descend.
The invention has the beneficial effects as follows:
⑴ kept to greatest extent middle fiber and the long fibre in the pulping, the cut-out that has reduced baccy fiber of minimum degree, reduced the distribution of short fiber, namely reduced the slurrying broken rate, fines content in slurry is reduced, (length 0.5～1.25mm) distributes, and the substrate bulk of therefore manufacturing paper with pulp out can reach 2.8～3.0cm can to obtain surpassing 63% middle fiber
3/ g.
⑵ the fiber retention of wet end is higher, has reduced the loss of fiber fines, and making in whole production process is that material loss reduces, and the yield of material is higher.
⑶ the substrate bulk that higher can obtain high thin slice bulk, can obtain high spreading rate, the filling value of high bulk product is higher, product adds in cigarette, and burning velocity is fast, and tar content and carbon monoxide content that product generates are lower than general reconstituted tobacoo.
⑷ the reconstituted tobacoo that make with the method belongs to high-grade reconstituted tobacoo.
Description of drawings
Fig. 1 is embodiment of the present invention process flow diagram.
Mark in accompanying drawing: 1-former kiln basin, 2～6-middle stock tank, 7-machine chest, 8-stock pump, 9-valve.
The specific embodiment
Be described in further detail below in conjunction with the enforcement of accompanying drawing to technical scheme:
Be illustrated in figure 1 as process flow diagram of the present invention.The figure Raw be offal, offal, fragment and the tobacco powder class material after the lixiviate that configures in proportion and discongest after the plus fiber compound, raw material exists and is placed in former kiln basin 1, middle stock tank 2～6 is used for depositing and configuring the variable concentrations slurry that one to three section fiberizer processes, first paragraph is four of the fiberizers of 1#～4# series connection, second segment is three of the fiberizers of 5#～7# series connection, the 3rd section two fiberizers that 8# connects with 9#, machine chest 7 is used for depositing the pulping that fiberizer processes, and is delivered to back segment with slurry, online, substrate and manufactures paper with pulp.The control of mass transport and the flow direction realizes by stock pump 8 and valve 9.
Referring to accompanying drawing 1, in work, first paragraph fiberizer operating procedure is: raw material is pumped to 1# fiberizer charging aperture in former kiln basin 1, after 1# through connecting～4# paste mill grinding, slurry is put to middle stock tank 2, from middle stock tank 2 by the whole circulating refluxs of stock pump to 1#～4# fiberizer defibrination for the second time, the first paragraph secondary that refluxes at most can carry out the flexible defibrinations of maximum 12 light cuttves altogether, setting the first paragraph refining concentration is 4.5～5.0%.Can be also that the discharging of 4# fiberizer is directly drained in former kiln basin 1, be back to 1# fiberizer circulating pulp grinding through stock pump 8, valve 9.
Second segment fiberizer operating procedure is: complete slurry after the first paragraph circulating pulp grinding be transported in the middle of in stock tank 3, when being diluted to concentration 4.0～4.5%, be transported in the 5# of series connection～7# fiberizer through stock pump and valve again and carry out the flexible defibrinations of two sections light cuttves, cyclic process such as first paragraph defibrination, second segment reflux the most at most once can carry out the flexible defibrination of maximum 6 light cuttves altogether.Can be also in the middle of the discharging of 7# fiberizer is directly drained in stock tank 3, through stock pump, valve return to 5# fiberizer circulating pulp grinding.
The 3rd section fiberizer operating procedure is: complete slurry after the second segment circulating pulp grinding be transported in the middle of in stock tank 5, when being diluted to concentration 2.0～2.5%, in being transported to the 8#, 9# fiberizer of series connection, stock pump and valve carry out the flexible defibrinations of three sections light cuttves again, cyclic process such as second segment defibrination, the 3rd section is refluxed the most at most and once can carry out altogether the flexible defibrinations of maximum 4 light cuttves.Can be also in the middle of the discharging of 9# fiberizer is directly drained in stock tank 3, through stock pump, valve return to 8# fiberizer circulating pulp grinding.
Embodiment one～embodiment ten:
It is below the defibrination experiment that the present invention carries out in 20,000 tons of certain newly-built annual outputs reconstituted tobacco production line slurrying workshop section at home.
Set in first paragraph in self-loopa 1～3 time, second segment in self-loopa 1～2 time, the 3rd section self-loopa 1～2 time, first to the 3rd section refining concentration is set as respectively 4.5～5.0%, 4.0～4.5%, 2.0～2.5%.By without refining concentration, the combination of different cycle-index, implemented altogether ten groups of experiments, obtain Different Results.Measurement makes middle fibre length such as the following table in slurry.
Analyze from above-described embodiment and draw: adopt technical solution of the present invention, press embodiment four, embodiment seven or embodiment nine, in the slurry that makes, length reaches more than 63% at fiber between 0.5～1.25mm, and high-grade reconstituted tobacoo substrate fully is suitable for manufacturing paper with pulp.
The accessible effect highly significant of the present invention is of value to:
⑴ kept to greatest extent middle fiber and the long fibre in the pulping, the cut-out that has reduced baccy fiber of minimum degree, reduced the distribution of short fiber, namely reduced the slurrying broken rate, fines content in slurry is reduced, (length 0.5～1.25mm) distributes, and the substrate bulk of therefore manufacturing paper with pulp out can reach 2.8～3.0cm3/g can to obtain surpassing 63% middle fiber.
⑵ the fiber retention of wet end is higher, has reduced the loss of fiber fines, and making in whole production process is that material loss reduces, and the yield of material is higher.
⑶ the substrate bulk that higher can obtain high thin slice bulk, can obtain high spreading rate, the filling value of high bulk product is higher, product adds in cigarette, and burning velocity is fast, and tar content and carbon monoxide content that product generates are lower than general reconstituted tobacoo.
⑷ whole 9 fiberizers carry out separately permanent power adjusting, namely by the automatic adjusting of the depth of cut, reach permanent power refining effect, can prevent that the abrasive disc wearing and tearing from causing pulp beating power to descend.
⑸ the reconstituted tobacoo that make with the method belongs to high-grade reconstituted tobacoo.
Below by reference to the accompanying drawings the specific embodiment of the present invention is described, but these explanations can not be understood to limit scope of the present invention, such as have in affiliated technical field and know that usually the knowledgeable not breaking away from all equivalence modifications of completing under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (2)
1. tobacco sheets by paper making method refining process, be to adopt flexible light cutter low concentration refining process, it is characterized in that: comprise three sections low dense flexible defibrinations and every section two fiberizer of connecting at least, every section by set point number self-loopa defibrination, successively reduce by three process programs of refining concentration; Described first paragraph is in series with four fiberizers, second segments and is in series with three fiberizers, the 3rd section and is in series with two fiberizers; Described first to the 3rd section refining concentration is set as respectively 4.5～5.0%, 4.0～4.5%, 2.0～2.5%; Described slurry is self-loopa 1～2 time in self-loopa 1～2 time, the 3rd section in self-loopa 1～3 time, second segment in first paragraph, is 9 times by the mixed slurry overall process reality of different components configurations by the fiberizer least number of times, maximum 22 times.
2. a kind of tobacco sheets by paper making method refining process as claimed in claim 1, it is characterized in that: whole 9 fiberizers can carry out separately permanent power adjusting.
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| CN201310060867.1A CN103169147B (en) | 2013-02-27 | 2013-02-27 | Papermaking tobacco sheet pulp grinding process |
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| CN201310060867.1A CN103169147B (en) | 2013-02-27 | 2013-02-27 | Papermaking tobacco sheet pulp grinding process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382218A (en) * | 2014-09-22 | 2015-03-04 | 华南理工大学 | Method for manufacturing tobacco sheets with paper-making process and tobacco sheets manufactured with method |
| CN104382217A (en) * | 2014-09-22 | 2015-03-04 | 华南理工大学 | Method for processing materials for manufacturing tobacco sheets and tobacco sheets manufactured with method |
| CN104480761A (en) * | 2014-10-17 | 2015-04-01 | 安徽中烟再造烟叶科技有限责任公司 | Flexible and controllable tobacco pulp preparation technology |
| CN105249520A (en) * | 2015-11-21 | 2016-01-20 | 安徽中烟再造烟叶科技有限责任公司 | Method of researching influences of pulp morphology on product indexes through paper-making tobacco sheets |
| CN111588072A (en) * | 2020-05-28 | 2020-08-28 | 浙江中烟工业有限责任公司 | Manufacturing method of paper-making reconstituted tobacco with high bulk and high air permeability |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382218A (en) * | 2014-09-22 | 2015-03-04 | 华南理工大学 | Method for manufacturing tobacco sheets with paper-making process and tobacco sheets manufactured with method |
| CN104382217A (en) * | 2014-09-22 | 2015-03-04 | 华南理工大学 | Method for processing materials for manufacturing tobacco sheets and tobacco sheets manufactured with method |
| CN104382218B (en) * | 2014-09-22 | 2016-04-13 | 华南理工大学 | A kind of preparation method of tobacco sheets by paper making method and reconstituted tobacoo thereof |
| CN104382217B (en) * | 2014-09-22 | 2016-04-13 | 华南理工大学 | A kind of processing method and reconstituted tobacoo thereof preparing reconstituted tobacoo material |
| CN104480761A (en) * | 2014-10-17 | 2015-04-01 | 安徽中烟再造烟叶科技有限责任公司 | Flexible and controllable tobacco pulp preparation technology |
| CN104480761B (en) * | 2014-10-17 | 2016-03-09 | 安徽中烟再造烟叶科技有限责任公司 | A kind of tobacco pulp pulping process controlled flexibly |
| CN105249520A (en) * | 2015-11-21 | 2016-01-20 | 安徽中烟再造烟叶科技有限责任公司 | Method of researching influences of pulp morphology on product indexes through paper-making tobacco sheets |
| CN105249520B (en) * | 2015-11-21 | 2017-03-22 | 安徽中烟再造烟叶科技有限责任公司 | Method of researching influences of pulp morphology on product indexes through paper-making tobacco sheets |
| CN111588072A (en) * | 2020-05-28 | 2020-08-28 | 浙江中烟工业有限责任公司 | Manufacturing method of paper-making reconstituted tobacco with high bulk and high air permeability |
| CN111588072B (en) * | 2020-05-28 | 2022-05-27 | 浙江中烟工业有限责任公司 | Manufacturing method of paper-making reconstituted tobacco with high bulk and high air permeability |
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Owner name: GUANGDONG JINYE TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER NAME: GUANGDONG GOLD LEAF TOBACCO SHEET TECHNOLOGY DEVELOPMENT CO., LTD. |
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Address after: 515100 Guangdong Province, Shantou city Chaoyang District Jinke Road Patentee after: Guangzhou Jinye Science & Technology Development Co., Ltd. Address before: 515100 Guangdong Province, Shantou city Chaoyang District Jinke road Deming Industrial Zone Patentee before: Guangdong Jinye Tobacco Sheet Technology Development Co., Ltd. |